Powerful waist twister

ABSTRACT

A powerful waist twister comprises mainly a handle bar, a post column and a twisting mechanism. The twisting mechanism is housed in a base casing with a top lid, in which two rotors, two spring elements, two rotor covers, a connecting rod, and a swing shaft are installed in the manner that each of two rotor seats, mounted along the sidewall of the base casing, receives one of two rotors which are further riveted on the base casing. The connecting rod links to both rotors with the central part pivoted to the swing shaft. The terminal end of the swing shaft is hooked with two spring elements which exert the reversible force to return the swing shaft back during the swing movement. The rotor seats produce a movement in the exactly opposite direction toward the movement of the handle bar, that means while the upper body moves in the right direction, the lower body will twist in the reverse direction to render the waist twisting and swinging movement.

FIELD OF THE INVENTION

[0001] This invention relates to a powerful waist twister which rendersthe waist a forced twist and swing, causing the upper body to move toone direction and the waist and hip to the reverse direction.

BACKGROUND OF THE INVENTION

[0002] On most gymnastic swing devices, while the body is swinging toone direction, the hands and legs follow the same direction, the swingrange is not sufficient enough and the efficiency is so limited.

[0003] Viewing the inherent pitfalls the gymnastic swing deviceembraces, the inventor has devoted for years to the study andimprovement on the swing device and come up with a novel waist twisterwith better mechanical structure and significant efficiency.

SUMMARY OF THE INVENTION

[0004] The major characteristics of the invention are that the novelpowerful waist twister comprises mainly a handle bar, a column post anda twisting mechanism which is housed in the base casing and the top lidin which there mount two rotors, two spring elements, two rotor seats, aconnecting rod and a swing shaft arranged in the manner where two rotorseats are sitting along the side wall of the base casing, each rotorseat will receive one of the rotors and the rotor seats are fixed on thebase casing. The connecting rod links two rotors at its ends and pivotsthe swing shaft at the central part. The swing shaft also binds twospring elements at its one end. The spring elements act to return theswing shaft back during the swing operation. The handle bar and therotor seats are moving in the opposite direction, causing the upper bodyand the lower body moving in the opposed direction, while the handlemoves from right to left, the waist and hip swing or twist in the otherdirection.

[0005] The invention is expressed in great details with the aid ofembodiments as illustrated in the attached drawings.

[0006] BRIEF DESCRIPTION OF THE DRAWINGS

[0007]FIG. 1 is the stereo outlook of this invention.

[0008]FIG. 2 shows the schematic diagram of disassembly of the twistingmechanism of the invention.

[0009]FIG. 3 shows the side view of the invention.

[0010]FIG. 4 is the cross section from 4-4 part of FIG. 1.

[0011]FIG. 5 is the schematic diagram of twisting mechanism of thisinvention.

[0012]FIG. 6 shows the operation status of the twisting mechanism of theinvention.

[0013]FIG. 7 is the stereo schematic diagram (1) in operation oftwisting mechanism of this invention.

[0014]FIG. 8 is the stereo schematic diagram (2) in operation oftwisting mechanism of this invention.

[0015]FIG. 9 is another preferable embodiment of the twisting mechanismof the invention.

[0016]FIG. 10 is a dynamic status of the twisting mechanism from FIG. 9of this invention.

[0017]FIG. 11 is another preferable embodiment of the twisting mechanismof the invention.

[0018]FIG. 12 is a dynamic status of the twisting mechanism from FIG. 11of this invention.

DETAILED DESCRIPTION OF THE INVENTION

[0019]FIGS. 1 through 5 show the powerful waist twister of theinvention, mainly comprising a handle bar 1, a column post 2 and atwisting mechanism 3 where the column post 2 is adjustable with theupper terminal connected to the handle bar 1 and the lower end locked tothe twisting mechanism 3 via the swing shaft 35. The twisting mechanism3 is housed in the base casing 31 and the top lid 37. Within the basecasing 31, there rest two rotors 32, two spring elements 34, oneconnecting rod 33 and one swing shaft 35. The base casing 31 providestwo rotor seats 311 to hold the rotors 32. As shown in FIG. 6, therotors are longitudinal bearings 321, sitting in the circular grooves3111 formed on surface of the rotor seats 311. The rotor cover 38 ispressed on the rotors 32. The rotor covers 38, the base casing 31, therotor seats 311 and the joint 312 are united together to ensure therotor covers 38 are able to rotate along the rotors 32.

[0020] As shown in FIGS. 5 through 8, each rotor cover is furnished anear link 382 linked with the shank 331 of the connecting rod 33. Bothends of the connecting rod 33 unite with the shank 331, the central partpivots the swing shaft 35 and the lower part to one end of the springelements 34 (where the spring is numbered 341). The spring 341 is hangedin herring form on the base casing 31, so does the swing shaft 35. Itforms a pivot point permitting the swing shaft 35 to swing to forwardand backward. The connecting post 36 of the swing shaft 35 works a pivotfor the connecting rod 33 and the spring elements 34 to pivot around.

[0021] While the exercise taker is holding the handle bar 1 with twohands, with the soles standing on the rotor seats 38 of the twistingmechanism 3, the protrusions 381 of the rotor seats 38 will carry outthe massage on the vital points of the soles. When the handle bar 1 isturned to right, the swing shaft 35, the connecting rod 33 and the shank331 will force the rotor seats 38 to turn to the left. It is apparent atthis moment, the upper body and the lower body move in the differentdirection. After the first force fades off, the spring 341 of the springelements 34 fixed on the connecting rod 33 will return the twistmechanism back.

[0022] The spring elements 34 can be of a spring 341 or a elasticdrawing strap 342 (as shown in FIGS. 11 and 12). Any material whichprovides recoil force shall serve the same effect.

[0023] Now please refer to FIGS. 9 and 10 in which, the rotors 32 isshaped into a rotary wheel 321′ sitting in the rotor seat 311 of thebase casing 31. The rotary wheel 321′ provides a protruded lug 3211′which penetrates the groove 331′ on both sides of the connecting rod 33′protruding between the rotary wheels 321′. While the rotor cover 38 isrotated, the linkage of rotary wheel 321′, the swing shaft 35 and theconnecting rod 33′ will cause the protruded lug 3211′ of the rotarywheel 321′ to move within the groove 331′. To prevent the connecting rod33′ from derailing off the orbit, a slide track is outfitted along bothsides to ensure its stability.

[0024] As shown in FIGS. 11 and 12, the rotors 32 can be further madeinto a geared wheel 321″, and a section of rack 331″ is formed on endsection of the connecting rod 33″. The teeth on the geared wheel 321″ isclosely married with the teeth 3211″ of the rack 331″. While the rotorcover 38 is rotated, the geared wheel 321″ will bring the connecting rod33″ into motion.

[0025] As described above, the structure provided in this invention isthe newest discovery. When the rotor cover is pressed by the sole, ittriggers the massage of vital point under the foot. At the same time,when the handle bar is moved to left or right, the twisting mechanismproduces a reverse motion, the swinging and twisting, a healthy action.The quality in novelty and progressiveness is superb justification forgranting patent to this invention.

What is claimed is:
 1. A powerful waist twister comprises mainly ahandle bar, a post column and a twisting mechanism, the twistingmechanism is housed in a base casing with a top lid, in which tworotors, two spring elements, two rotor covers, a connecting rod, and aswing shaft are installed in the manner that each of two rotor seats,mounted along the sidewall of the base casing, receives one of tworotors which are further riveted on the base casing, the connecting rodlinks to both rotors with the central part pivoted to the swing shaft,the terminal end of the swing shaft is hooked with two spring elementswhich exert the recoil force to return the swing shaft back during theswing movement, the rotor seats produce a movement in the exactlyopposite direction toward the movement of the handle bar, that meanswhile the upper body moves in the right direction, the lower body willtwist in the reverse direction to render the waist twisting and swingingmovement.
 2. The power waist twister of claim 1, wherein the springelement can be of a section of coil spring or a section of elasticstrap.
 3. The powerful waist twister of claim 1, wherein the rotors canbe a longitudinal bearing.
 4. The powerful waist twister of claim 1,wherein the rotors can be of a rotary wheel with a protruded lugextending out of the groove of the connection rod, while the rotors arerotating, the action of the protrude ear is confined with the groove soas to cause the connecting rod to act.
 5. The powerful waist twister ofclaim 1, wherein the rotors can be of a geared wheel tied with the rackof the connecting rod, while the rotors are rotating, the teeth of thegeared wheel move with the rack and cause the connecting rod to act.